docs: Update stale documentation - docs/getting-started/first-research.md

## Stale Documentation Detected

**File:** `docs/getting-started/first-research.md`
**Current ms.date:** `2026-02-18`
**Age:** 96 days (threshold: 90 days)

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**Workflow Run:** https://github.com/microsoft/hve-core/actions/runs/26396313156
**Detection Date:** 2026-05-25

### Action Required
- [ ] Review and update this documentation file
- [ ] Update `ms.date` frontmatter to current date
- [ ] Verify technical accuracy of content
- [ ] Close this issue manually after fixes are merged

Open docs/getting-started/first-research.md and review its frontmatter and current content for technical accuracy. Update the documented guidance as needed, set ms.date to the current date, and confirm the file no longer contains stale information before closing the issue after the changes are merged.

Written by the indexing model from the issue text.